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  2. Styrofoam - Wikipedia

    en.wikipedia.org/wiki/Styrofoam

    Styrofoam insulation extruded polystyrene foam (XPS), owned and manufactured by DuPont. Styrofoam is a genericized trademarked brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and as a water barrier.

  3. Polystyrene - Wikipedia

    en.wikipedia.org/wiki/Polystyrene

    Expanded polystyrene (EPS) is a rigid and tough, closed-cell foam with a normal density range of 11 to 32 kg/m 3. [47] It is usually white and made of pre-expanded polystyrene beads. The manufacturing process for EPS conventionally begins with the creation of small polystyrene beads.

  4. Rigid panel - Wikipedia

    en.wikipedia.org/wiki/Rigid_panel

    Rigid cellular polystyrene (RCPS). This includes extruded polystyrene foam XPS (such as Styrofoam and commonly referred to as "blue board," expanded polystyrene foam EPS (commonly referred to as "beadboard"), and MEPS. Polyisocyanurate (also known as polyiso). More stable at high temperatures and less flammable than polyurethane.

  5. Polymeric foam - Wikipedia

    en.wikipedia.org/wiki/Polymeric_foam

    Polychloroprene foam or Neoprene; Polyimide foam; Polypropylene (PP) foam, including expanded polypropylene (EPP) and polypropylene paper (PPP) Polystyrene#Foams (PS) foam Expanded polystyrene (EPS) Extruded polystyrene foam (XPS), sometimes sold under brand name Styrofoam; sometimes polystyrene paper (PSP) Polyurethane (PU) foam

  6. Structural insulated panel - Wikipedia

    en.wikipedia.org/wiki/Structural_insulated_panel

    EPS is the most common of the foams used and has an R-value (thermal resistance) of about 4 °F·ft 2 ·h/Btu (equivalent to about 0.7 K·m 2 /W) per 25 mm thickness, which would give the 3.5 inches (89 mm) of foam in a 4.5-inch-thick (110 mm) panel an R value of 13.8 (caution: extrapolating R-values over thickness may be imprecise due to non ...

  7. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    For example, a 1-inch layer of closed-cell foam provides about the same insulation factor as 2 inches of open-cell foam. Closed-cell foam is very strong, and structurally reinforces the insulated surface. By contrast, open-cell foam is soft when cured, with little structural strength.

  8. Phase-out of polystyrene foam - Wikipedia

    en.wikipedia.org/wiki/Phase-out_of_polystyrene_foam

    Discarded polystyrene cup on the shore of Lake Michigan. In the late 20th and early 21st century, there has been a global movement towards the phase-out of polystyrene foam as a single use plastic (SUP). Early bans of polystyrene foam intended to eliminate ozone-depleting chlorofluorocarbons (CFCs), formerly a major component.

  9. Insulating concrete form - Wikipedia

    en.wikipedia.org/wiki/Insulating_concrete_form

    The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...

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